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    Construction for closing a through hole in a magnesium alloy case
    1.
    发明授权
    Construction for closing a through hole in a magnesium alloy case 失效
    用于关闭镁合金外壳中的通孔的结构

    公开(公告)号：US06485242B1

    公开(公告)日：2002-11-26

    申请号：US09655474

    申请日：2000-09-05

    申请人： Kazuo Kikawa ,  Shigekazu Tanaka ,  Kazuhiro Washizu

    发明人： Kazuo Kikawa ,  Shigekazu Tanaka ,  Kazuhiro Washizu

    IPC分类号： B65D3908

    CPC分类号： F16B43/001 ,  F01M2011/0091 ,  F01M2011/0416 ,  F05C2251/042

    摘要： A construction is provided in which a drain hole 4 provided with internal threads 3 in a Mg alloy oil pan 1 is closed with a screw-type plug body 5 constituted by a metal other than Mg and Mg alloy. The plug body 5 has a threaded shank 6 screwed into the drain hole 4 and an enlarged end 7 having a diameter larger than that of the threaded shank 6. A corrosion preventing plate 14 fitted on the threaded shank 6 via a threaded shank passing hole 15 is disposed between a washer 11 of the enlarged end 7 and a peripheral portion 13 of an opening of the drain hole 4 which corresponds to the washer 11 so that there is provided an electrical insulation between the washer 11 and the peripheral portion 13 of the opening. The corrosion preventing plate 14 has a plurality of annular sealing projections on both sides thereof which are arranged in a concentric fashion about the threaded shank passing hole 15 so as to bite into the peripheral portion 13 of the opening and the washer 11.

    摘要翻译： 提供一种结构，其中在Mg合金油盘1中设置有内螺纹3的排水孔4用除了Mg和Mg合金之外的金属构成的螺旋型塞体5封闭。 塞体5具有拧入排水孔4的螺纹柄6和直径大于螺纹柄6直径的扩大端7.防锈板14通过螺纹柄通孔15装配在螺纹柄6上 设置在扩大端部7的垫圈11和与垫圈11对应的排水孔4的开口的周边部分13之间，从而在垫圈11和开口部分的周边部分13之间设置电绝缘体 。 防腐蚀板14在其两侧具有多个环形密封突起，它们围绕螺纹柄通孔15以同心方式布置，以便咬入开口的周边部分13和垫圈11。

    Method for metallic mold-casting of magnesium alloys
    2.
    发明授权
    Method for metallic mold-casting of magnesium alloys 失效
    镁合金金属铸造方法

    公开(公告)号：US06460602B2

    公开(公告)日：2002-10-08

    申请号：US09826007

    申请日：2001-04-05

    申请人： Kohei Kubota ,  Yoichi Nosaka ,  Seiichi Koike ,  Kazuhiro Washizu ,  Kazuo Kikawa

    发明人： Kohei Kubota ,  Yoichi Nosaka ,  Seiichi Koike ,  Kazuhiro Washizu ,  Kazuo Kikawa

    IPC分类号： B22C300

    CPC分类号： B22C3/00 ,  B22D21/007

    摘要： A metallic mold-casting method excellent in the resistance to penetration is herein disclosed and the method comprises the steps of forming a coating layer by applying a mixture comprising at least one member selected from the group consisting of high melting metals, ceramic materials and graphite, and an aqueous surfactant solution or low boiling liquid oils and fats to at least part of the surface of a metallic mold on its cavity side, then applying heat to the coated portion to thus adhere the mixture to the inner surface of the mold, and thereafter repeatedly casting a magnesium alloy in the metallic mold provided with the coating layer. The metallic mold-casting method permits the metallic mold casting of magnesium alloys with good resistance to penetration and this accordingly leads to the production of a cheap and high quality cast magnesium alloy product.

    摘要翻译： 本文公开了耐渗透性优异的金属铸造方法，该方法包括以下步骤：通过施加包含选自高熔点金属，陶瓷材料和石墨中的至少一种的混合物形成涂层， 和表面活性剂水溶液或低沸点液体油和脂肪在其空腔侧的金属模的表面的至少一部分表面，然后向涂覆部分施加热量，从而将混合物粘附到模具的内表面，此后 在设置有涂层的金属模具中重复铸造镁合金。 金属铸造方法允许镁合金的金属模具铸造具有良好的耐渗透性，因此导致生产廉价和高质量的铸造镁合金产品。

    Thixocasting process, for a thixocasting alloy material
    3.
    发明授权
    Thixocasting process, for a thixocasting alloy material 失效
    Thixocasting工艺，用于触变合金材料

    公开(公告)号：US5787961A

    公开(公告)日：1998-08-04

    申请号：US543196

    申请日：1995-10-13

    申请人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    发明人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    IPC分类号： B21D21/00 ,  B22D17/00 ,  C22C1/00 ,  C22C21/02 ,  C22C21/14 ,  B22D23/00

    CPC分类号： B22D17/007 ,  C22C1/005 ,  C22C21/02 ,  C22C21/14 ,  Y10S164/90

    摘要： In carrying out of a thixocasting process, a material in a semi-molten state is produced by heating an aluminum alloy material which has a thermal characteristic that a first angled endothermic section generated by the melting of a eutectic crystal and a second angled endothermic section generated by the melting of a component having a melting point higher than a eutectic point exist in a differential calorimetric curve. A start point of a primary pressing stage is established at a point when the temperature T of the material is in a range of T.sub.1

    摘要翻译： 在进行触媒处理的过程中，通过加热铝合金材料来制造半熔融状态的材料，所述铝合金材料具有通过共晶晶体熔化产生的第一倾斜的吸热部分和产生的第二成角度的吸热部分的热特性 通过熔点高于共晶点的组分的熔融存在于差示量热曲线中。 在材料的温度T在第一角度吸热中的起始点的温度T1之间的关系中，在T1

    Thixocasting process of an alloy material
    4.
    发明授权
    Thixocasting process of an alloy material 失效
    合金材料的硫化过程

    公开(公告)号：US6053997A

    公开(公告)日：2000-04-25

    申请号：US956188

    申请日：1997-10-22

    申请人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    发明人： Takeyoshi Nakamura ,  Nobuhiro Saito ,  Kazuo Kikawa ,  Takeshi Sugawara

    IPC分类号： B21D21/00 ,  B22D17/00 ,  C22C1/00 ,  C22C21/02 ,  C22C21/14

    CPC分类号： B22D17/007 ,  C22C1/005 ,  C22C21/02 ,  C22C21/14 ,  Y10S164/90

    摘要： In carrying out of a thixocasting process, a material in a semi-molten state is produced by heating an aluminum alloy material which has a thermal characteristic that a first angled endothermic section generated by the melting of a eutectic crystal and a second angled endothermic section generated by the melting of a component having a melting point higher than an eutectic point exist in a differential calorimetric curve. A start point of a primary pressing stage is established at a point when the temperature T of the material is in a range of T.sub.1

    摘要翻译： 在进行触媒处理的过程中，通过加热铝合金材料来制造半熔融状态的材料，所述铝合金材料具有通过共晶晶体熔化产生的第一倾斜的吸热部分和产生的第二成角度的吸热部分的热特性 通过熔点高于共晶点的组分的熔融存在于差示量热曲线中。 在材料的温度T在第一角度吸热中的起始点的温度T1之间的关系中，在T1

    Magnesium alloy
    6.
    发明授权
    Magnesium alloy 失效
    镁合金

    公开(公告)号：US07153374B2

    公开(公告)日：2006-12-26

    申请号：US10381781

    申请日：2002-08-09

    申请人： Kazuo Kikawa ,  Takashi Shiraishi ,  Atsushi Fukatsu

    发明人： Kazuo Kikawa ,  Takashi Shiraishi ,  Atsushi Fukatsu

    IPC分类号： C22C23/00

    CPC分类号： C22C23/00 ,  C22C23/06

    摘要： A refractory magnesium alloy includes magnesium as a principal ingredient, and an element having a radius 9–14% larger than a magnesium atom and a maximum concentration of 2 mass % or larger in a solid solution with magnesium is mixed in an amount not exceeding a maximum amount that can be homogeneously mixed in the solid solution with magnesium, whereby internal strength of grains thereof is enhanced. Alternatively, gadolinium with a content thereof ranging from 0.5 to 3.8 mass % is added, so that remaining part other than the gadolinium is composed of the magnesium and unavoidable impurities. This magnesium alloy serves to inhibit decrease in proof stress and creep deformation, especially primary creep deformation when used at high temperatures, typically at 200° C. The magnesium alloy may be employed for a structural material for a vehicle, so that a lightweight and heat-resistant structural material can be obtained.

    摘要翻译： 耐火镁合金包括镁作为主要成分，并且将具有比镁原子大9-14％的半径的元素和镁的固溶体的最大浓度为2质量％以上的元素以不超过 可以在镁的固溶体中均匀混合的最大量，从而提高其晶粒的内部强度。 或者，添加含量为0.5〜3.8质量％的钆，使除了钆之外的其余部分由镁和不可避免的杂质构成。 这种镁合金用于抑制在高温下（典型地在200℃）下使用时的抗应力和蠕变变形特别是初级蠕变变形。镁合金可用于车辆的结构材料，从而使轻质和高温 可以获得耐用的结构材料。

    Thixocasting process, and thixocasting aluminum alloy material
    8.
    发明授权
    Thixocasting process, and thixocasting aluminum alloy material 失效
    Thixocasting工艺，和thixocasting铝合金材料

    公开(公告)号：US5993572A

    公开(公告)日：1999-11-30

    申请号：US728435

    申请日：1996-10-09

    申请人： Nobuhiro Saito ,  Haruo Shiina ,  Takeyoshi Nakamura ,  Takeshi Sugawara ,  Kazuo Kikawa

    发明人： Nobuhiro Saito ,  Haruo Shiina ,  Takeyoshi Nakamura ,  Takeshi Sugawara ,  Kazuo Kikawa

    IPC分类号： C22C1/00 ,  C22C21/00

    CPC分类号： C22C1/005

    摘要： In a thixocasting process, the following steps are used: a step of subjecting, to a heating treatment, an Al-Si based alloy material having a hypo eutectic crystal composition and a characteristic that a first angled endothermic section appearing due to the melting of a eutectic crystal and a second angled endothermic section appearing due to the melting of a component having a melting point higher than a eutectic point exist in a differential calorimetric curve, thereby preparing a semi-molten Al-Si based alloy material having solid and liquid phases coexisting therein; a step of pouring the semi-molten Al-Si based alloy material into a cavity in a casting mold under pressure; and a step of solidifying the semi-molten Al-Si based alloy material under pressure. When the temperature of a rise-start point in the first angled endothermic section is represented by T.sub.1, and the temperature of a drop-end point the first angled endothermic sections is represented by T.sub.2, the casting temperature T for the semi-molten Al-Si based alloy material is set in a range of T.sub.1 .ltoreq.T.ltoreq.T.sub.2. Thus, the fine precipitation of a primary crystal Si phase can be realized to provide an increase in strength of an aluminum alloy cast product.

    摘要翻译： 在触媒处理中，使用以下步骤：对具有低共晶组成的Al-Si系合金材料进行加热处理的步骤，以及由于熔融而形成的第一成角度的吸热部 由于熔点高于共晶点的熔点高于共晶点而出现的共晶晶体和第二倾斜的吸热部分存在于差示热量曲线中，从而制备具有固相和液相的半熔融Al-Si基合金材料共存 其中 将半熔融的Al-Si基合金材料在压力下浇注到铸模中的空腔中的步骤; 以及在压力下使半熔融Al-Si系合金材料凝固的工序。 当第一倾斜吸热部分中的起始点的温度由T1表示，并且下降端点的温度将第一倾斜吸热部分表示为T2时，半熔融Al- Si基合金材料设定在T1